Szklary Wastewater Treatment Plant - Podkarpackie, Poland

Szklary wastewater treatment plant is located in the village of Szklary, within gmina Jaśliska, powiat krośnieński, in the Podkarpackie Voivodeship of southeastern Poland. The plant serves a small population of 406 residents, reflecting its role in a rural community. It operates under Polish regulations that transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant provides secondary treatment, which is the standard biological treatment required for all agglomerations under the EU directive. Its designed capacity is 250 m³/day, and the current discharge volume is 57.89 m³/day, indicating it operates well below capacity. Secondary treatment typically involves biological processes such as activated sludge or trickling filters. The treated effluent is discharged into a local watercourse, likely a small stream or river in the Wisłok or San river basin, which ultimately drains into the Vistula River and then the Baltic Sea. The plant's operation helps protect local water quality and the downstream aquatic environment, supporting biodiversity in the region's forested and mountainous terrain.

The plant discharges into a local tributary of the Wisłok River, which flows into the San River, a major tributary of the Vistula. The Vistula drains into the Baltic Sea. The region is part of the Carpathian foothills, with sensitive aquatic ecosystems that support diverse fish and invertebrate populations. The plant's secondary treatment reduces organic pollutants and nutrients, helping to prevent eutrophication in downstream waters.